powernv: Fix permissions on sysparam sysfs entries

Everyone can write to these files, which is not what we want.

Cc: stable@vger.kernel.org # 3.15
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

diff --git a/arch/powerpc/platforms/powernv/opal-sysparam.c b/arch/powerpc/platforms/powernv/opal-sysparam.c
index d202f9bc3683f5ad0072282173ddfb510b1aec9a..9d1acf22a099dfc1bf474f6244af11d1153742f6 100644 (file)
--- a/arch/powerpc/platforms/powernv/opal-sysparam.c
+++ b/arch/powerpc/platforms/powernv/opal-sysparam.c
@@ -260,10 +260,10 @@ void __init opal_sys_param_init(void)
                        attr[i].kobj_attr.attr.mode = S_IRUGO;
                        break;
                case OPAL_SYSPARAM_WRITE:
-                       attr[i].kobj_attr.attr.mode = S_IWUGO;
+                       attr[i].kobj_attr.attr.mode = S_IWUSR;
                        break;
                case OPAL_SYSPARAM_RW:
-                       attr[i].kobj_attr.attr.mode = S_IRUGO | S_IWUGO;
+                       attr[i].kobj_attr.attr.mode = S_IRUGO | S_IWUSR;
                        break;
                default:
                        break;